Biodiversity

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October 17, 2023 How does barge trafficking/movement affect the ecology and biodiversity of riverine ecosystems? A study explains.
River Hooghly at Kolkata (Image Source: Yercaud-elango via Wikimedia Commons)
May 20, 2023 Freshwater biologists Sameer Padhye and Avinash Vanjare talk about smaller and lesser known animals that live in freshwater ecosystems and the importance of studying them. 
Freshwater ecosystems, under threat (Image Source: Biologia Life Science LLP)
January 25, 2023 This study found large deposits of heavy metals in the tissues and organs of water birds, crabs and fish inhabiting the lake indicating heavy metal contamination of the lake waters.
A view of the Veeranam lake in Tamil Nadu (Image Source: Giri9703 via Wikimedia Commons)
December 4, 2022 What is the status of inland fisheries in India? Read these situational analysis reports to know about inland fisheries, the life of the fisherfolk, governance and tenure in inland fisheries and threats to the sustainability of inland fisheries.
Fishing in an irrigation canal in Kerala (Image Source: Martin Pilkinton via Wikimedia Commons)
August 2, 2022 The frequency and intensity of floods is on the rise in Assam spelling doom for fish biodiversity.
Life during floods in Assam (Image Source: Kausika Bordoloi via Wikimedia Commons)
Dr. G. D. Agrawal , the scientist, environmentalist and rishi
Dr. Agarwal - an Inspiring teacher, a humble man and the most-sought-after environmentalist Posted on 27 Jul, 2010 03:52 PM

Dr. G. D. Agrawal Scientist and Rishi

Meeting Dr. G. D. Agrawal in his spartan, two room cottage in Chitrakoot, Madhya Pradesh, you would never guess what an accomplished and distinguished scientist he is – first Member-Secretary of the Government of India’s Central Pollution Control Board, former Head of the Department of Civil and Environmental Engineering at IIT Kanpur and a PhD from the University of California, Berkeley. The list goes on and on.

Yet this eminent professional sweeps his own floors, washes his own clothes and cooks his own meals. He retains only a few possessions and dresses in homespun khadi. At the age of 76, his main mode of transport within Chitrakoot is a bicycle and when he travels further afield, he goes by ordinary bus and second-class train. These are the deliberate choices of a devout Hindu whose deepest values are for simplicity and reverence for nature. Dr G.D. Agrawal is the doyen of environmental engineering professionals in India. Well past retirement, he continues to teach and inspire students as an Honorary Professor of Environmental Sciences at the Mahatma Gandhi Chitrakoot Gramodaya Vishwavidyalaya, in Chitrakoot (M.P.).

Protecting Pili river from land and pond encroachment
A letter of grievance: protecting Pili river Posted on 27 Jul, 2010 02:50 AM

dear all, I have sent several mail to concern department including minster jairam romesh regarding the Protecting PILI river , due to filling pond , taal , river land , dam to a river land encroachment in my village KOPA , Unfortunately, I still haven't received my reply .

Relevance of Meltwater in River Basin Hydrology
Much talked about disappearing Himalayan glaciers, little is done and more is debated. In this ongoing discourse, we lose the rate of river flows. Seeking facts... Posted on 23 Jul, 2010 10:53 PM

peer paper in Science Magazine focuses on the core of a riverine system, the upstream basin, and its impact on the entire river basin.

Proposing a National River Authority of India (NRAI)
In hope of a better river management Posted on 23 Jul, 2010 04:29 PM

Intervening at the urgency of the water situation of the country and need in larger interest of the people and nation from political, legal, social, administrative, commerce,trade,cultural, world tourism angles, apart from agricultural and drinking water angle; annual devastation by floods,and loss by drought. One single Authority, with P.M. as Chairman may hopefully bring expected and good results in river management; riverine rejuvenation - National River Authority of India

Here is a draft proposal for such an authority to be created.

We are looking for collaborations on making this a reality.

Please post your comments.

Prof G.D. Agrawal resumes fast unto death to save the Ganga, Swami Avimukteshwaranand and others to join in support
Resolves of the Emergency Meeting to decide Plan of Action against the illegal decision of the GoM to allow resumption of Loharinag - Pala Power Project Posted on 21 Jul, 2010 11:10 AM

Forwarded to the Portal by: Ayan Biswas
Image and News Courtesy: 

Shankracharya designate Swami Avimukteshwaranand ji presided over an emergency meeting organized by Manushi Sangathan, Ganga Ahvaan and Ganga Yamuna Jal Biradri to express our strong protest against the patently illegal decision of the Group of Ministers giving clearance to the Loharinag-Pala dam on the Ganga River. The following expert members of the NGRBA also participated in the meeting to express their strong protest having been kept in the dark about the appointment of the GoM which has passed a virtual death sentence on the most sacred river of India: Rashid Hyatt Siddiqui, Rajendra Singh, Rama Raota and Ravi Chopra.

Environment flows - Continuing the discussion
Environment Flows are simple, yet devilishly difficult to achieve. Continuing the discussion on environment flows Posted on 21 Jul, 2010 12:41 AM
As It Flows Cartoon
 
The Portal has earlier seen a debate on Environment Flows (the principle that we must leave some water in the rivers for the environment and ecosystem).
Augmenting groundwater resources by artificial recharge: A case study - Kolwan valley - A report by ACWADAM
Increasing the groundwater levels with artificial recharge in Kolwan, Pune Posted on 19 Jul, 2010 04:45 PM

KolwanThis report by ACWADAM describes the results of a research study conducted under the DFID funded AGRAR project at the Kolwan site in Pune district of Maharashtra state in India. The research focused on studying the usefulness of artificial recharge to augment groundwater resources through watershed development.

An important criterion of the study was also to understand the impact of artificial recharge on already changing livelihoods in areas where watershed development was conducted on a large scale.

A rapid geohydrological study of microwatersheds from Bolangir district, Orissa state - A report by ACWADAM
Planning water resource management in one of the hottest and most backward regions of India, Bolangir district in Orissa Posted on 16 Jul, 2010 03:50 PM

BolangirThis document by ACWADAM is a report of a rapid geohydrological assessment of some of the microwatersheds from parts of Bolangir district Orissa.

Bolangir district in Orissa forms a part of one of the hottest and backward regions of India with low land-productivity, and opportunities and technologies for agriculture in the district remain relatively unexplored.

Vagaries of rainfall and the underlying hard-rock geology further compound the problem and limit agricultural productivity to a great extent. Given such natural uncertainties, systematic implementation of a watershed management programme is the most viable avenue to overcome the problems of this region.

Bolangir district was thus selected as pilot area to conduct a pre-feasibility exercise for planning of water resources management. ACWADAM, Pune was invited, along with Samaj Pragati Sahayog, Bagli to conduct this pre-feasibility exercise.

A study of saline freshwater interface phenomena in the Mahanadi delta region (Orissa)
Orissa's freshwater aquifer systems prone to saline water mixing and migration with time and development Posted on 10 Jul, 2010 10:40 PM

A study of saline freshwater interface phenomena in the Mahanadi delta region (Orissa)The subsurface aquifer systems in Mahanadi delta region in Orissa (India) is largely characterized by two groups of freshwater aquifer systems, both of which are prone to saline water mixing/migration with time and development:

  • The south western Mahanadi delta region is represented by unconfined to semi-confined freshwater aquifers underlained by brackish/saline aquifer systems with a diffusion boundary.
  • The north eastern parts of Mahanadi delta is represented by deep freshwater confined aquifers overlained by brackish/saline water aquifers with aquitard/ aquiclude boundary.
Conservation of lakes - Myths and realities of desilting
Desilting Lakes is more dangerous and hazardous unlike common belief as it disturbs the original lake bed and increases losses through heavy seepage Posted on 09 Jul, 2010 11:11 PM

Desilting is becoming a major component of any Lake Conservation Project now a days. The basic reasons given for necessity of desilting are - increasing the storage capacity and checking eutrophic conditions.

As it is not practicable to reverse the slow process of silting in the bed of lakes through which only silt can be removed, there is no word like 'desilting' in any standard English dictionary. What we are doing in the name of 'desilting' is practically 'digging' or 'excavation' of lake bed. By so called desilting, the original lake bed is disturbed which has far reaching adverse effects on the performance of the lake. Most visible effect is the increase in percolation rate resulting in heavy seepage losses through the lake bed as observed after massive desilting at Pushkar lake in 2009.

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